Howdy Tanya,
I would reach out to Chat Williams of Wonderspark! and maybe have a coffee with him while he is in town? He and Z. Briggs adapted one of their shows from a book called "Chicken Soup, Chicken Soup" and they have some sort of licensing agreement with the publisher.
When it comes to Creative Licensing, I have been looking into this myself, because the upfront costs are pretty pricey. But, with Honey Goodenough, I have a deal with her that every Word Play show, I send Honey a $130 check as a licensing fee. We've kept it at that rate for two years, but I'm starting to wonder if that should change year to year...
Hope this train of thought is helpful as you go!
Call me if you wanna chat it through.
Best,
Sarah